corksport is out of stock til april 30th of the rx7 2nd gen 2.5'' power series exhaust.

 

single exit? probably the same place corksport gets them from.... ebay. Apexi has a single exit, but the muffler end is bigger than 2.5, piping is 2.5.

 

not sure if you have the resources or desire but for all my cars i just go to my local exhaust shop and tell them what i want, this size piping into this muffler and this tip and they get it done fairly quickly as long as its a good shop, thats if your impatient tho and a little pricier too

 

yea im looking for a single exit. how do you know corksport gets their stuff from ebay??
the corksport system i'm looking at has 110 mm tip w/ 2.5'' piping, ebay has lots of exhaust systems which are identical with one exception, they are all 3'' piping. everyone on here who i have asked said 2.5 is much better for an NA than 3'', and said 3'' decreases torque with na's. all i would need is a 2.5'' catalyst connection on any of those turbo ii cat backs and it would work but they're all 3 inches... my car is a 91 coupe

 

dynomax

 

86-91 A'PEXi N-1 Exhaust or N-1 Dual

N-1 Piping diameter: 65-70-85(mm).

N-1 Dual Piping Diameter 65mm-(60.5mm-65mm)x2
Tip 90mmx2

-+-+-+-+-+-+-+-+-+-+

65mm is about 2.56 inches. SAE is a retarded measurement system. I'm sure you can find more exhausts now that you realize that the rest of the world uses the metric system.

 

Not necessarily ebay, but probably the same manufacturers that provide the exhausts sold on ebay (made in foreign country). Not that I am saying its cheap stuff at all, it's just probably where they source their exhaust. If you look, construction is very similar. If you want the 2.5 I suppose you will have to wait for the corksport.

http://rx7.com/store/rx7/fcexhaust.html

 

gotcha